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https://www.readbyqxmd.com/read/29165523/-chromoblastomycosis-clinical-and-microbiological-characteristics-of-a-neglected-disease
#1
Roberto Ventura-Flores, Virgilio Failoc-Rojas, Heber Silva-Díaz
Chromoblastomycosis is a neglected and chronic fungal disease, mainly affects the subcutaneous tissue in limbs of people with occupational risk. Here, we report two cases of adult patients from tropical regions of northern Peru, affected with chronic erythematous scaly lesions and multiple blackheads, pain, itching and scarring in older areas of injury. Direct examination of the dermal scales showed typical of this disease fumagoides cells; Fonsecaea pedrosoi and Fonsecaea sp. were isolated for at first and second case respectively...
August 2017: Revista Chilena de Infectología: órgano Oficial de la Sociedad Chilena de Infectología
https://www.readbyqxmd.com/read/29125559/endotoxin-induced-inflammation-suppresses-the-effect-of-melatonin-on-the-release-of-lh-from-the-ovine-pars-tuberalis-explants-ex-vivo-study
#2
Karolina Wojtulewicz, Dorota Tomaszewska-Zaremba, Andrzej Przemysław Herman
The secretion of the hormone melatonin reliably reflects environmental light conditions. Among numerous actions, in seasonal breeders, melatonin may regulate the secretion of the gonadotropins acting via its corresponding receptors occurring in the Pars Tuberalis (PT). However, it was previously found that the secretory activity of the pituitary may be dependent on the immune status of the animal. Therefore, this study was designed to determine the role of melatonin in the modulation of luteinizing hormone (LH) secretion from the PT explants collected from saline- and endotoxin-treated ewes in the follicular phase of the oestrous cycle...
November 10, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28957000/critical-review-future-control-of-blackhead-disease-histomoniasis-in-poultry
#3
Steven Clark, Emily Kimminau
Blackhead disease (histomoniasis) currently has no efficacious drug approved for use in poultry in the United States. Both chickens and turkeys can get the disease, but mortality is most often associated with turkeys. The lack of any approved therapies for blackhead is of concern, especially in the case of valuable turkey breeder candidate flocks. Due to the availability of efficacious drugs for many years, research focused on blackhead was minimal. However, without any drugs or reliable additives, blackhead will continue to be an issue in turkeys and broiler breeder chickens...
September 2017: Avian Diseases
https://www.readbyqxmd.com/read/28729017/daily-levels-and-rhythm-in-circulating-corticosterone-and-insulin-are-altered-with-photostimulated-seasonal-states-in-night-migratory-blackheaded-buntings
#4
Ila Mishra, Devraj Singh, Vinod Kumar
The circadian rhythms are involved in the photostimulation of seasonal responses in migratory blackheaded buntings. Here, we investigated whether changes in daily levels and rhythm in corticosterone (cort) and insulin secretions were associated with transitions in the photoperiodic seasonal states. Buntings were exposed to short days to maintain the winter (photosensitive) non-migratory state, and to long days for varying durations to induce the premigratory, migratory (shown by migratory restlessness at night, Zugunruhe) and summer non-migratory (photorefractory) states...
July 25, 2017: Hormones and Behavior
https://www.readbyqxmd.com/read/28665738/development-of-a-dry-medium-for-isolation-of-histomonas-meleagridis-in-the-field
#5
Miguel A Barrios, Anna Kenyon, Robert Beckstead
Blackhead disease is caused by Histomonas meleagridis, an anaerobic protozoan parasite, and results in mortality rates of up to 100% in turkeys and 30% in chickens. Outbreaks of blackhead disease are unpredictable, and the harvesting of H. meleagridis strains from the field would be a great resource for researchers to study its epidemiology. Therefore, the objective of this study was to develop a dry medium that would allow storage at ambient temperatures until needed. Fifty milliliters of horse serum was dried and then mixed with dry medium M199 with Hanks balanced salts (10...
June 2017: Avian Diseases
https://www.readbyqxmd.com/read/28428827/fundamental-research-on-the-action-mechanism-of-the-800-nm-semiconductor-laser-on-skin-blackheads-and-coarse-pores
#6
Jie Lin, Li Jing, Hao Zhu, Fu-Sheng Dong
The aim of the study was to determine the mechanism of action of the 800 nm semiconductor laser on skin blackheads and coarse pores. A total of 24 healthy purebred short-haired male guinea pigs, weighing 350-400 g, were selected and smeared with 0.5 ml coal tar suspension evenly by injector once daily. Treatment was continued for 14 days to form an experimental area of 8×3 cm on the back of the guinea pigs. The animals were divided into the following groups: Normal control group (NC), low-dose laser treatment group (L-LS), high-dose laser treatment group (H-LS), and Q-switched Nd:YAG treatment group (QC)...
January 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28423417/multi-species-mating-disruption-in-cranberries-ericales-ericaceae-early-evidence-using-a-flowable-emulsion
#7
Shawn A Steffan, Elissa M Chasen, Annie E Deutsch, Agenor Mafra-Neto
Pheromone-based mating disruption has proven to be a powerful pest management tactic in many cropping systems. However, in the cranberry system, a viable mating disruption program does not yet exist. There are commercially available pheromones for several of the major pests of cranberries, including the cranberry fruitworm, Acrobasis vaccinii Riley (Lepidoptera: Pyralidae) and blackheaded fireworm, Rhopobota naevana (Hübner) (Lepidoptera: Tortricidae). Previous studies have shown that mating disruption represents a promising approach for R...
January 1, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28295708/seasonal-alterations-in-the-daily-rhythms-in-hypothalamic-expression-of-genes-involved-in-the-photoperiodic-transduction-and-neurosteroid-dependent-processes-in-migratory-blackheaded-buntings
#8
Ila Mishra, Devraj Singh, Vinod Kumar
This study investigated seasonal alterations in the daily rhythms of hypothalamic expression of genes involved in the photoperiodic regulation of annual cycles in birds. We measured 4-hourly mRNA expression of genes involved in the photoperiodic transduction (OPN5, EYA3, CGA, TSHβ, DIO2, DIO3) and neurosteroid-dependent processes (AR, CYP19, ERα, ERβ) in the hypothalamus of migratory blackheaded buntings photoinduced with photosensitive, photostimulated (early and late stimulated) and photorefractory seasonal states...
March 14, 2017: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/28254568/extra-hypothalamic-brain-clocks-in-songbirds-photoperiodic-state-dependent-clock-gene-oscillations-in-night-migratory-blackheaded-buntings-emberiza-melanocephala
#9
Devraj Singh, Vinod Kumar
The avian circadian pacemaker system is comprised of independent clocks in the retina, pineal and hypothalamus, as shown by daily and circadian oscillations of core clock genes (Per2, Cry1, Bmal1 and Clock) in several birds including migratory blackheaded buntings (Emberiza melanocephala). This study investigated the extra-hypothalamic brain circadian clocks in blackheaded buntings, and measured Per2, Cry1, Cry2, Bmal1 and Clock mRNA expressions at 4h intervals over 24h beginning 1h after light-on in the left and right telencephalon, optic tectum and cerebellum, the brain regions involved in several physiological and cognitive functions...
April 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28245642/flight-synchrony-among-the-major-moth-pests-of-cranberries-in-the-upper-midwest-usa
#10
Shawn A Steffan, Merritt E Singleton, Jayne Sojka, Elissa M Chasen, Annie E Deutsch, Juan E Zalapa, Christelle Guédot
The cranberry fruitworm (Acrobasis vaccinii Riley), sparganothis fruitworm (Sparganothis sulfureana Clemens), and blackheaded fireworm (Rhopobota naevana Hübner) are historically significant pests of cranberries (Vaccinium macrocarpon Aiton) in the Upper Midwest (Wisconsin), USA. Their respective natural histories are well documented but correlations between developmental benchmarks (e.g., larval eclosion) and degree-day accruals are not yet known. Treatment timings are critical to the optimization of any given control tactic, and degree-day accrual facilitates optimization by quantifying the developmental status of pest populations...
February 26, 2017: Insects
https://www.readbyqxmd.com/read/27902913/regulatory-considerations-for-the-approval-of-drugs-against-histomoniasis-blackhead-disease-in-turkeys-chickens-and-game-birds-in-the-united-states
#11
REVIEW
Prajwal R Regmi, Ashley L Shaw, Laura L Hungerford, Janis R Messenheimer, Tong Zhou, Padmakumar Pillai, Amy Omer, Jeffrey M Gilbert
Histomoniasis, commonly referred to as blackhead disease, is a serious threat to the turkey and game bird industries worldwide, and it is having an increasingly negative impact on the chicken industry as well. The Food and Drug Administration's (FDA) Center for Veterinary Medicine (CVM), charged with the approval and regulation of new animal drugs in the United States, understands the rising need for the availability of therapeutic options against histomoniasis. CVM has actively engaged in discussions with the poultry industry, academic institutions, and animal health companies regarding the current status of histomoniasis in the United States and varied success of past and current management, prophylactic, and therapeutic interventions that have been used against the disease...
December 2016: Avian Diseases
https://www.readbyqxmd.com/read/27670126/light-therapies-for-acne
#12
REVIEW
Jelena Barbaric, Rachel Abbott, Pawel Posadzki, Mate Car, Laura H Gunn, Alison M Layton, Azeem Majeed, Josip Car
BACKGROUND: Acne vulgaris is a very common skin problem that presents with blackheads, whiteheads, and inflamed spots. It frequently results in physical scarring and may cause psychological distress. The use of oral and topical treatments can be limited in some people due to ineffectiveness, inconvenience, poor tolerability or side-effects. Some studies have suggested promising results for light therapies. OBJECTIVES: To explore the effects of light treatment of different wavelengths for acne...
September 27, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27439640/blackheads-whiteheads-femoral-head
#13
(no author information available yet)
No abstract text is available yet for this article.
July 2016: Journal of Paediatrics and Child Health
https://www.readbyqxmd.com/read/27439638/blackheads-whiteheads-femoral-head
#14
Joshua Osowicki, Ke Juin Wong, Leo Donnan, Penelope A Bryant
No abstract text is available yet for this article.
July 2016: Journal of Paediatrics and Child Health
https://www.readbyqxmd.com/read/27179427/perfluoroalkylated-substances-in-edible-livers-of-farm-animals-including-depuration-behaviour-in-young-sheep-fed-with-contaminated-grass
#15
Effrosyni Zafeiraki, Irene Vassiliadou, Danae Costopoulou, Leondios Leondiadis, Helmut A Schafft, Ron L A P Hoogenboom, Stefan P J van Leeuwen
Perfluoroalkylated substances (PFASs) present a potential health risk for consumers. In animals these compounds are known to accumulate in livers. In order to determine potential PFASs contamination in commercially available livers, samples from farmed sheep, horses, cows, pigs and chicken were collected from the Dutch market. PFOS was the only detectable PFAS and its concentration was higher in free ranging animals like cows and sheep. The detected levels of PFOS in the liver samples were very low (up to 4...
August 2016: Chemosphere
https://www.readbyqxmd.com/read/27081249/comedones-induced-by-vascular-laser-therapy
#16
Gulsen Tukenmez Demirci, Ayse Tulin Mansur, Ayse Tulin Gulec
A 21-year-old female presented with acne-like blackheads on brownish areas located on the cheek. She had been treated with neodymium-doped yttrium aluminium garnet (Nd-YAG) laser (1071 nm), 160 j/cm(2), three months ago for erythema and telangiectasia of her face. Afterwards, she developed atrophic, slightly depressed, hyperpigmented, 3-4 mm scars with superimposed tiny comedones within the treated areas. Topical treatment with tretinoin 0.05% cream on alternate days, and Sun Protection Factor (SPF) 50 sunscreen daily were commenced...
January 2016: Journal of Cutaneous and Aesthetic Surgery
https://www.readbyqxmd.com/read/26660516/chondrocyte-survival-in-osteochondral-transplant-cylinders-depends-on-the-harvesting-technique
#17
Benedikt Hafke, Maximilian Petri, Eduardo Suero, Claudia Neunaber, Sebastian Kwisda, Christian Krettek, Michael Jagodzinski, Mohamed Omar
PURPOSE: In autologous osteochondral transplantation, the edges of the harvested plug are particularly susceptible to mechanical or thermal damage to the chondrocytes. We hypothesised that the applied harvesting device has an impact on chondrocyte vitality. METHODS: Both knees of five blackhead sheep (ten knees) underwent open osteochondral plug harvesting with three different circular harvesting devices (osteoarticular transfer system harvester [OATS; diameter 8 mm; Arthrex, Munich, Germany], diamond cutter [DC; diameter 8...
July 2016: International Orthopaedics
https://www.readbyqxmd.com/read/26591388/grazing-behaviour-and-dry-matter-intake-of-llamas-lama-glama-and-german-black-head-mutton-sheep-ovis-orientalis-forma-aries-under-central-european-conditions
#18
Anna Maria Stölzl, Christian Lambertz, Matthias Gauly
The aim of the present study was to assess the behaviour of llamas (Lama glama) and German blackhead mutton sheep (Ovis orientalis forma aries) when kept under Central European grazing conditions. In total, six adult female sheep and six adult female llamas were observed by direct observation during one week, in which each group was observed for a total time of 24 h. The animals were kept on the same pasture, but the species were raised in separate plots. Forage height before and after the experimental period were determined using a rising plate meter to calculate the average daily dry matter intake (DMI)...
September 2015: Berliner und Münchener Tierärztliche Wochenschrift
https://www.readbyqxmd.com/read/26212527/evaluation-of-anti-acne-properties-of-phloretin-in-vitro-and-in-vivo
#19
H Kum, K-B Roh, S Shin, K Jung, D Park, E Jung
OBJECTIVE: This study aimed to investigate the anti-acne properties of phloretin in vitro and in vivo. METHODS: Anti-microbial activity against Propionibacterium acnes (P. acnes), Propionibacterium granulosum (P. granulosum) and Staphylococcus epidermidis (S. epidermidis) were observed by the minimum inhibitory concentration (MIC) and disc diffusion methods. The anti-inflammatory effects were studied in HaCaT cells based on P. acnes-induced inflammatory mediators, including PGE2 and COX-2, examined through enzyme-linked immunosorbent assay (ELISA) and luciferase reporter gene assay...
February 2016: International Journal of Cosmetic Science
https://www.readbyqxmd.com/read/26032934/the-effect-of-physically-applied-alpha-hydroxyl-acids-on-the-skin-pore-and-comedone
#20
RANDOMIZED CONTROLLED TRIAL
S J Kim, J H Baek, J S Koh, M I Bae, S J Lee, M K Shin
OBJECTIVE: Alpha hydroxy acids (AHA) have been recognized as commonly used therapy for acne. Our studies examined whether an additional effect of physical treatment using chemical peeling combined with negative pressure and compared with AHA treatment only occurs in acne-prone subjects. METHODS: The chemical peeling agent used 4% of an AHA solution (mixture of 1000 mL of carbonated water, 20 mL of glycolic acid and 20 mL of lactic acid). All subjects' faces were randomly divided into test and control groups...
October 2015: International Journal of Cosmetic Science
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